Filling Segments Of Pie Charts - HP 7470A Interfacing And Programming Manual

To crosshatch a bar, add program lines to draw from the left to the
right side of the bar, starting at G, B-(G—A).
110 PRINT"PH1.?,O,PD,1.?,EO,2.3,50,2.3,0,1.?,O;PU;"
120 PRINT "UH;"
130 ENTER,?05 ; H,B,C
140 PRINT "PR1.?,50;DH;"
150 ENTER ?O5 ; D,E,F
150 PRINT"PR2.3,so;0P;"
1?0 ENTER 705 ; G,H,I
130 PRINT "PH1.?,0;SC;"
130 P=1oo
200 PRINT "IN";R;B;G;H
210 EUR Y=B-(G-H) TU E STEP P
220 PRINT "PU";H;Y;"PD";G;Y+(G-H)
230 NExT
240 PRINT"PU;SC1,12,0,150;IN;"
r
'\
D,E G,H
T \\\\\\'
A,B G,B
J M J M
, stanza:
G B-(G—A)
P : 100 P : 300
Filling Segments of Pie Charts
The algorithms to fill slices of pie charts are much more complex be­
cause the areas are not rectangular. Software packages such as the
Graphics Presentations Pacs for various HP desktop computers make it
easy to draw pie charts with area fill. You may wish to purchase such
software so you do not have to invest hours of programming time in
order to create filled pie charts.
PUTTING THE COMMANDS TO WORK 8-13